<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item :to="{path:'/goods'}">商品列表</el-breadcrumb-item>
            <el-breadcrumb-item>添加商品</el-breadcrumb-item>
        </el-breadcrumb>

        <el-card>
<!--            警告条-->
            <el-alert
                    title="消息提示的文案"
                    type="info"
                    center
                    show-icon
                    :closable="false"
            >
            </el-alert>
<!--            步骤条-->
           <el-steps :space="200" :active="activeIndex-0" finish-status="success" align-center>
                <el-step title="基本信息"></el-step>
                <el-step title="商品参数"></el-step>
                <el-step title="商品属性"></el-step>
                <el-step title="商品图片"></el-step>
                <el-step title="商品内容"></el-step>
                <el-step title="完成"></el-step>
            </el-steps>
<!--            分标签-->
            <el-form :model="addFormData" :rules="addFormDatarules" ref="addFormDataRef" label-width="100px" label-position="top">
            <el-tabs v-model="activeIndex" :tab-position="'left'" :before-leave="beforeTabLeave" @tab-click="tabClicked">
                <el-tab-pane label="基本信息" name="0">
                    <el-form-item label="商品名称" prop="goods_name">
                        <el-input v-model="addFormData.goods_name"></el-input>
                    </el-form-item>
                    <el-form-item label="商品价格" prop="goods_price ">
                        <el-input v-model="addFormData.goods_price" type="number"></el-input>
                    </el-form-item>
                    <el-form-item label="商品重量（kg）" prop="goods_weight">
                        <el-input v-model="addFormData.goods_weight" type="number"></el-input>
                    </el-form-item>
                    <el-form-item label="商品数量" prop="goods_number">
                        <el-input v-model="addFormData.goods_number" type="number"></el-input>
                    </el-form-item>
                    <el-form-item label="商品分类" prop="goods_cat">
                        <el-cascader
                                v-model="addFormData.goods_cat"
                                :options="cateListAdd"
                                :props="cateProps"
                                :collapse-tags="true"
                                @change="handleChange">
                        </el-cascader>
                    </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品参数" name="1">
                    <el-form-item :label="item.attr_name" :key="item.attr_id" v-for="item in manyTableData">
                        <el-checkbox-group v-model="item.attr_vals">
                            <el-checkbox :label="cb" v-for="(cb,i) in item.attr_vals" :key="i" border></el-checkbox>
                        </el-checkbox-group>
                    </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品属性" name="2">
                    <el-form-item v-for="item in onlyTableData" :key="item.attr_id" :label="item.attr_name">
                        <el-input v-model="item.attr_vals"></el-input>
                    </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品图片" name="3">
                    <el-upload
                            class="upload-demo"
                            action="http://timemeetyou.com:8889/api/private/v1/upload"
                            :on-preview="handlePreview"
                            :on-remove="handleRemove"
                            :headers="headerObj"
                            :on-success="handleSuccess"
                            list-type="picture">
                        <el-button size="small" type="primary">点击上传</el-button>
                        <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
                    </el-upload>
                </el-tab-pane>
                <el-tab-pane label="商品内容" name="4">
                    <quill-editor v-model="addFormData.goods_introduce"></quill-editor>
                    <el-button type="primary" class="addshop" @click="Add">添加商品</el-button>
                </el-tab-pane>
            </el-tabs>
            </el-form>
        </el-card>
        <el-dialog
                title="图片预览"
                :visible.sync="addDialogVisible"
                width="50%"
        >
            <img :src="previewPath" alt="" class="previewImg">
        </el-dialog>
    </div>
</template>

<script>
    export default {
        name: "add",
        created() {
            this.getCateList();
        },
        data(){
            return{
                activeIndex:0,
                addFormData:{
                    goods_name:'',
                    goods_price:0,
                    goods_weight:0,
                    goods_number:0,
                    goods_cat:[],
                    pics:[],
                    goods_introduce:''
                },
                addFormDatarules:{
                    goods_name:[{ required: true, message: '请输入', trigger: 'blur' }],
                    goods_price:[{ required: true, message: '请输入', trigger: 'blur' }],
                    goods_weight:[{ required: true, message: '请输入', trigger: 'blur' }],
                    goods_number:[{ required: true, message: '请输入', trigger: 'blur' }],
                    goods_cat:[{ required: true, message: '请选择', trigger: 'blur' }],
                },
                cateListAdd:[],
                cateProps:{
                    label:"cat_name",
                    value:"cat_id",
                    children:"children"
                },
                manyTableData:[],
                onlyTableData:[],
                headerObj:{
                    Authorization:window.sessionStorage.getItem('token')
                },
                previewPath:'',
                addDialogVisible:false
            }
        },
        methods:{
            async getCateList(){
                const{data:res}=await this.$http.get("categories");

                if(res.meta.status!==200){
                    return this.$message.error("获取数据失败");
                }
                this.cateListAdd=res.data;
                // console.log(this.cateListAdd);

            },
            handleChange(){
                // console.log(this.addFormData.goods_cat);
                if(this.addFormData.goods_cat.length!==3){
                    this.addFormData.goods_cat=[];
                }
            },
            beforeTabLeave(activeName,oldActiveName){
                if(oldActiveName==='0'&& this.addFormData.goods_cat.length!==3){
                    this.$message.error("请选择商品分类");
                    return false;
                }
                // console.log(activeName,oldActiveName)
            },
            async tabClicked(){
                // console.log(this.activeIndex);
                if(this.activeIndex==="1"){
                    const {data:res}=await this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:"many"}});
                    if(res.meta.status!==200){
                        return this.$message.error("获取数据失败")
                    }
                    res.data.forEach(item=>{
                        item.attr_vals=item.attr_vals.length===0?[]:item.attr_vals.split(' ');
                    });
                    this.manyTableData=res.data;
                }else if(this.activeIndex==="2"){
                    const {data:res}=await this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:"only"}});
                    if(res.meta.status!==200){
                        return this.$message.error("获取数据失败")
                    }
                    // console.log(res);
                    this.onlyTableData=res.data;
                }
            },
            handlePreview(file){
                // console.log(file);
                this.previewPath=file.response.data.url;
                this.addDialogVisible=true;
            },
            handleRemove(file){
                const filePath=file.response.data.tmp_path;
                const i=this.addFormData.pics.findIndex(x=>x.pic===filePath);
                this.addFormData.pics.splice(i,1);
                console.log(this.addFormData);

            },
            handleSuccess(responce){
                const picInfo={pic:responce.data.tmp_path};
                this.addFormData.pics.push(picInfo);
                console.log(responce);
            },
            Add(){
                console.log(this.addFormData);
                this.$refs.addFormDataRef.validate(valid=>{
                    if(valid){
                        this.addFormData.goods_cat=this.addFormData.goods_cat.join(',');
                        console.log(this.addFormData);
                    }else{
                        return this.$message.error("请填写必要的表单项")
                    }
                })
            }

        },
        computed:{
            cateId(){
                if(this.addFormData.goods_cat.length===3){
                    return this.addFormData.goods_cat[2];
                }
                return null;
            }
        }

    }
</script>

<style lang="less" scoped>
    .el-breadcrumb{
        padding: 15px;
    }
    .el-card{
        margin-top: 15px;
    }
    .el-checkbox{
        margin: 0 5px 0 0 !important;
    }
    .previewImg{
        width: 100%;
    }
    .addshop{
        margin-top: 10px;
    }
</style>
